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bugfix for fixed seeds

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This commit is contained in:
van Hauser
2020-09-07 17:30:28 +02:00
parent 7bcbfd48e5
commit 6404abd7d6
2 changed files with 11 additions and 3 deletions
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2
src/afl-fuzz-queue.c
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@ -502,7 +502,7 @@ u32 calculate_score(afl_state_t *afl, struct queue_entry *q) {
// Longer execution time means longer work on the input, the deeper in // Longer execution time means longer work on the input, the deeper in
// coverage, the better the fuzzing, right? -mh // coverage, the better the fuzzing, right? -mh
if (afl->schedule >= RARE && likely(!afl->fixed_seed)) { if (likely(afl->schedule < RARE) && likely(!afl->fixed_seed)) {
if (q->exec_us * 0.1 > avg_exec_us) { if (q->exec_us * 0.1 > avg_exec_us) {

12
src/afl-fuzz-stats.c
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@ -1022,7 +1022,11 @@ void show_init_stats(afl_state_t *afl) {
/* Let's keep things moving with slow binaries. */ /* Let's keep things moving with slow binaries. */
if (avg_us > 50000) { if (unlikely(afl->fixed_seed)) {
afl->havoc_div = 1;
} else if (avg_us > 50000) {
afl->havoc_div = 10; /* 0-19 execs/sec */ afl->havoc_div = 10; /* 0-19 execs/sec */
@ -1093,7 +1097,11 @@ void show_init_stats(afl_state_t *afl) {
random scheduler jitter is less likely to have any impact, and because random scheduler jitter is less likely to have any impact, and because
our patience is wearing thin =) */ our patience is wearing thin =) */
if (avg_us > 50000) { if (unlikely(afl->fixed_seed)) {
afl->fsrv.exec_tmout = avg_us * 5 / 1000;
} else if (avg_us > 50000) {
afl->fsrv.exec_tmout = avg_us * 2 / 1000; afl->fsrv.exec_tmout = avg_us * 2 / 1000;